I tested it in my aquarium, I'm thrilled! Totally waterproof, all LEDs work for a month now, he is on every night. Many option of good power lighting, remote control and batteries at the top are provided. The only advice I can give is to stick to the glue (the one that sticks foot ceiling) for a perfect fit because the stickiness of the tape sticking a few hours. For the price, I recommend this product!